Charles a



(No Model.)

0. A. LIEB.

SUPPORT FOR ELECTRIC WIRES.

No. 448,246. Patented Mar. 17, 189-1.

ATTOHN EY UNITED STATES PATENT OEEIcE.

CHARLES A. LIEB, ()F NE\V YORK, N. Y.

SUPPORT FOR ELECTRIC WIRES.

SPECIFICATION forming part of Letters Patent No. 448,246, dated March 17, 1891.

Application filed November 19, 1890. Serial No. 371,917. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES A. LTEB, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented a certain new and useful Insulated Supporter for Electric IVires, of which the following is a specification.

My invention relates to an improved insulated supporter for overhead electric wires, which I illustrate as used in connection with trolley-wires and span-wires, because the invention is peculiarly adapted to such use, although also usable in other connections. It comprises a metallic body part having hooks or equivalent devices, whereby it may be attached to overhead wires, and a threaded metallic part or nut held between insulating surfaces or pieces of insulating material within the metallic body part.

My invention also extends to improved means for holding the trolley-wire and also to the employment of an umbrella upon the metallic-body part.

In the drawings I show the trolley-wire and the span-wire or its equivalent as being parallel. This is done simply to more clearly illustrate the invention. They ordinarily, of course, run at substantially right angles to each other.

Figure 1 is an elevation of my invention partially broken away, showing my improved trolley-wire holder. Fig. 2 is a similar view showing modified means of holding the insulating materialwithin the metallic body part, and showing an old and well-known form of trolley-wire supporter. Fig. 3 illustrates another form, showing the hooks for suspending the wire-supporter to another wire, as formed upon a threaded nut, which closes the upper end of the metallic body part and corn fines the insulated material. Fig. l illustrates still another form of my invention, in which the metal body part is clamped upon the insulating material, thus holding it firmly in place. Fig. is a transverse section on the line :0 a of Fig. 1.

A is a span-wire or its equivalent.

B is the trolley-wire or its equivalent.

O is the metallic body part of the wire-supporter proper. It has at its lower end an umbrella D-in other words, a metal bell-shaped metal body part after the insulating material and nut G are in place.

.I is the spindle, which is threaded into the nut G, and to which is pivoted at K the trolley or other wire supporter L. This supporter (see Fig. 5) is formed of a single piece of material bent into the two parts M M, which are provided with a bolt N at their upper parts, which engage with the spindle J. There are lips O 0 formed on this piece at such place as preferred, which are bent over upon the trolley-wire, as shown in Fig. 5,thus securely clamping it and preventing its escape.

In Fig. 2 I show a form constructed in substantially the same manner as in Fig. 1, excepting that the insulating material and the nut G are held firmly in place by a threaded ring, orit maybe a disk P, which engages with screw-threads I in Fig. 1. Q in Fig. 2 is an ordinary form of trolley-wire connector.

In Fig. I show the device constructed in such manner that there is a nut R formed at the upper portion of the metal body part of the supporter and permanent flanges S at its lower part. The hooks E and stud F are used, being attached to the nut R. In this form also I show a spindle T instead of a threaded nut. These parts i. (2., nut and spindlemay be substituted for each other whenever desired. I also show a packingU, which may be of any preferred material, between the two pieces of insulating material and the ends of the head of the spindle T. In this form the insulating material, the spindle, and the packing are dropped into the metal body part from. the top and the nut R is then firmly screwed down into place. In this operation it may be made to squeeze the packing, thus giving rigidity to and firmly holding all the parts. In this figure the flange S and the inwardlypressed part V of Fig. 4 are so constructed as that the opening downward is smaller than the diameter of the head of the nutT, so that should for any reason the insulation be burned away the wire will not drop. This is an important feature of my invention.

In Fig. 4 I show a construction in which all the metal parts with the exception of the threaded spindle or nut T are made in one piece. The major part of the device when made inthis form is made in the first instance in a substantially cylindrical or cup shape, and the upper piece of insulating material and the packing, if it be used as a distinct piece, although cement or like material may be employed, and also the lower piece of insulating material, are made in the form of frustums of a cone, and they are dropped into the cupshaped partor piece when it is inverted, and then the device is subjected to a swaging process, by which the metal is forcibly crowded inward and made to assume the shape shown atV, its former or open position being shown in dotted lines at V. In this form it will be observed there are no joints what-ever.

I wish it to be understood that in all the forms of my invention the nut or spindle may be embedded in the insulating material, thus making them practically one piece, also that any kind of insulating material, such as rubber-,vulca-beston, wood, or other suitable material, and also the various plastic or moldable insulating materials, may be employed.

I'do not limit myself to the details of construction shown, because it will be obvious to those who are familiar with this art that alterations may be made therein, and still my invention be employed.

I claim 1. A supporter for electric wires, comprising a metallic body part and a metallic nut placed within the body part and between insulating material, and a threaded ring engaging with threads on the body part for confining the insulating material in place, substantially as set forth.

' 2. A supporter for electric wires, comprising, essentially, a metallic body part having hooks and an umbrella and a nut within the body part placed between insulating material, substantially as set forth.

A supporter for electric wires, comprising, essentially, a metallic body part having hooks integral therewith, a nut or like device located within the body part and between insulating material, substantially as set forth.

4. A supporter for electric wires, made of a single piece of metal, within which are insulated material and a nut or like device placed between insulating material, the whole being held in place by bending a portion of the body partover the same, substantially as set forth.

5. A supporter for electric wires, made of a single piece of metal, within which are insulating material and a nut placed between the insulating material, the whole being held in place by bending a portion of the body part over the same, and an umbrella integral with the body part, substantially as set forth.

6. A supporter for electric wires, made of a single piece of metal, within which are insulating material and a nut placed between the insulating material, the whole being held in place by bending a portion of the body part over the same, and hooks integral with the body part, substantially as set forth.

7. A supporter for electric wires, comprising a metallic body part, a nut or like device placed within the body part and between insulating material, the head of the nut or like device being larger than the opening downward in the metallic body part, whereby the wire will be held should the insulating material be destroyed,substantially as set forth.

Signed at New York, in the county of New York and State of New York, this 14th day of November, A. D. 1890.

CHARLES A. LIEB.

Witnesses:

PHILLIPS ABBOTT, J. E. HOFFMAN. 

